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Volobuev, V. S.; Klokova, N. P.; Kosov, L. I.; Kamkova, V. D.; Minakov, V. P.; Tikhomirov, V. I.

doi:10.1023/a:1010939718310

Cited by 2 publications

(1 citation statement)

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“…The fact that an RSG is a disposable device prevents a direct calibration. Traceability of calibration has to be established by indirect methods which demonstrate that the gauge factor can be reproduced for a strain gauge from a batch of gauges to be used for testing [6,7].…”

Section: Introductionmentioning

confidence: 99%

Traceability of Optical Techniques for Strain Measurement

Hack¹,

Burguete

Patterson

2006

AMM

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Strain is a dimensionless quantity derived from displacement. To measure strain, devices such as resistive strain gauges and extensometers but also imaging methods are applied in engineering and experimental mechanics. The lack of standards and reference materials related to optical methods of strain measurement is tackled by the SPOTS project. It is intended to make full use of the modularity of different methods in order to develop a unified approach to standardisation. In this contribution we focus on the problem of traceability of optical strain measurement values and underline the role of strain measurement standards. We clarify the terminology and outline routes for traceability in analogy to widespread procedures for single value strain measurements.

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Section: Introductionmentioning

confidence: 99%

Traceability of Optical Techniques for Strain Measurement

Hack¹,

Burguete

Patterson

2006

AMM

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Application of Installations with Uniform-Strength Beams as Working Deformation Standards

Tribushevskaia,

Mitrofanov,

Osipov

2024

Stand. obraz.

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A method for obtaining homogeneous deformation along the length of the measuring section of a uniform-strength beam and the possibility of its application as part of a working deformation standard are considered. The results of the analysis of the bending model and the design of a uniform-strength beam are presented. In the focus of attention are the parameters included in the measurement equation and related to methodological factors, as well as influencing the result of relative deformation measurements. The subjects of research are the presence of contact friction forces, heterogeneity of material properties, the special nature of the load application (bending, torsion, the presence of residual stresses in the body, geometrical parameters of the calibration beam, orientation of primary transducers on the beam, application of bending load, measurement of deflection and displacement of the neutral layer). The advantages and disadvantages of using a uniform-strength beam for determining the characteristics of primary strain transducers during testing, calibration, and verification were established. The deviation of signals of primary transducers located outside the axial cross-section when oriented along the beam axis and along the force lines converging at the point of load application was experimentally revealed. The error due to the orientation of the primary transducers on the beam depending on the angle between the lateral faces can range from 0.15 to 0.23 %. The study adds to the theoretical knowledge base on the possibility of using a cantilever uniform-strength beam as a load-bearing element in calibration installations. The conclusions may be useful for testing, calibrating, and verifying primary strain transducers.

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Cited by 2 publications

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Traceability of Optical Techniques for Strain Measurement

Traceability of Optical Techniques for Strain Measurement

Application of Installations with Uniform-Strength Beams as Working Deformation Standards

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